*{
    box-sizing: border-box;
}

body,h1,h2,h3,h4,h5,h6,ul,li,p{
    margin: 0;
    padding: 0;
}

ul{
    list-style: none;
}

img{
    display: block;
}

html{
    font-size: 16px;
    color: #333;
}

a{
    text-decoration: none;
    color: #333;
}

button{
    border: none;
    outline: none;
    background-color: transparent;
    cursor: pointer;
    user-select: none;
}
button:active{
    opacity: 0.8;
}

input{
    background-color: transparent;
    outline: none;
    border: none;
}

table{
    border-collapse: collapse;
}

/* 重置分割线 */
hr{
    border: none;
    background-color: #ccc;
    height: 1px;
    margin: 10px 0;
}